Audacity is a great tool for simple audio editing. If you've only ever used it to trim recordings, now's the time to take the next step into actual signal clean-up. Here's how to remove noise from any MP3 or any recording.

Yatri Trivedi takes us step by step through removing background noise from a recording you've made or a file you've picked up. It starts with finding a quiet moment where the noise is still present, so you can get a baseline on what Audacity should remove from the rest of the track. If, like me, you've found that your USB headset or laptop microphone always carries with it a little hiss and click, this could save you a lot of second takes and frustration.